﻿/* 
   Copyright 2011 LUCA Studios LLC & John Evans

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

namespace LUCAStudios.Silverlight.Controls.Draggable
{
    using System;

    /// <summary>
    /// Provides an exception object for the WindowManipulation class
    /// </summary>
    public class DraggableException : Exception
    {
        private readonly string _message;
        private readonly IDraggable _win;
        /// <summary>
        /// Constructor for WindowManipulationException
        /// </summary>
        /// <param name="window">The IWindow object related to the exception.  null if not specifically related to any registered windows.</param>
        /// <param name="message">Description of the error message.</param>
        public DraggableException(IDraggable window, string message)
        {
            _message = message;
            _win = window;
        }
        /// <summary>
        /// The window object related to the exception thrown.
        /// </summary>
        public IDraggable Draggable
        {
            get { return _win; }
        }
        /// <summary>
        /// Friendly error message regarding the exception.
        /// </summary>
        public override string Message
        {
            get
            {
                return _message;
            }
        }
    }
}
